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See Technical Specifications

ISL3176EIUZ

1/1 Transceiver Full RS422, RS485 10-MSOP

Manufacturer:

RENESAS
Mfr.Part #:

ISL3176EIUZ
Datasheet:

ISL3176EIUZ Datasheet (PDF)
Type:

Transceiver
Protocol:

RS422, RS485
Number of Drivers/Receivers:

1/1
Duplex:

Full
EDA/CAD Models:

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ISL3176EIUZ General Description

The Renesas ISL317xE are ±15kV IEC61000 ESD protected, 3. 3V powered single transceivers that meet both the RS-485 and RS-422 standards for balanced communication. These devices have very low bus currents (+125µA/-100µA), so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without violating the RS-485 specification's 32 unit load maximum, and without using repeaters. For example, in a remote utility meter reading system, individual meter readings are routed to a concentrator using an RS-485 network, so the high allowed node count minimizes the number of repeaters required. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. Hot Plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes. The ISL3170E through ISL3175E utilize slew rate limited drivers which reduce EMI, and minimize reflections from improperly terminated transmission lines, or unterminated stubs in multidrop and multipoint applications. Slew rate limited versions also include receiver input filtering to enhance noise immunity in the presence of slow input signals. The ISL3170E, ISL3171E, ISL3173E, ISL3174E, ISL3176E, and ISL3177E are configured for full duplex (separate Rx input and Tx output pins) applications. The half duplex versions multiplex the Rx inputs and Tx outputs to allow transceivers with output disable functions in 8 Ld packages.

Key Features

IEC61000 ESD protection on RS-485 I/O pins ±15kV
- Class 3 ESD level on all other pins >7kV HBM
Full fail-safe (open, short, terminated/floating) receivers
Hot plug - Tx and Rx outputs remain three-state during power-up (only versions with output enable pins)
True 1/8 unit load allows up to 256 devices on the bus
Single 3.3V supply
High data rates up to 20Mbps
Low quiescent supply current 800µA (Max)
- Ultra low shutdown supply current 10nA
-7V to +12V common-mode input/output voltage range
Half and full duplex pinouts
Three state Rx and Tx outputs available
Current limiting and thermal shutdown for driver overload protection
Tiny MSOP packages consume 50% less board space
Pb-free (RoHS compliant)

Specifications

Type	Transceiver	Protocol	RS422, RS485
Number of Drivers/Receivers	1/1	Duplex	Full
Receiver Hysteresis	15 mV	Data Rate	20Mbps
Voltage - Supply	3V ~ 3.6V	Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount	Product Category	RS-422/RS-485 Interface IC
Series	ISL3176E	Mounting Style	SMD/SMT
Function	Transceiver	Number of Drivers	1 Driver
Number of Receivers	1 Receiver	Supply Voltage - Max	3.3 V
Supply Voltage - Min	3.3 V	Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C	Height	0.85 mm
Input Voltage	- 7 V to + 12 V	Length	3 mm
Operating Supply Current	510 uA	Operating Supply Voltage	3.3 V
Output Current	15 nA	Output Voltage	- 7 V to + 12 V
Product Type	RS-422/RS-485 Interface IC	Shutdown	Shutdown
Factory Pack Quantity	980	Subcategory	Interface ICs
Width	3 mm	Unit Weight	0.000917 oz